Because my tab blows that one out of the water, that's why. I can assure you that 99% of this tab is spot on, except for the solos, which I couln't figure out at that time (this tab is like 2 years old, I could probably figure out seth's one but can't be bothered).

It's in six strings for the simple reason that I don't have a 7 string, but as you can see it doesn't require 7 strings at all.